I believe the reason for non-existence of a flag for heterosexuals is the same that explains the general absence of specific symbology for any majority, either ethnic, social, etc. António Martins, 4 February 2001
I have seen a proposed flag for heterosexuals. I believe the design was six horizontal stripes, N-W-N-W-N-W. The obvious reference is to the Rainbow Flag, essentially removed of its color. Steve Kramer, 5 February 2001
I did see that design suggested at one point, but for the life of me, I can't find it now. It was, essentially, suggested by political conservatives who were generally opposed to the symbolism of a flag for a sexual orientation anyway; a quick online search indicates that many conservatives have rhetorically suggested such a symbol many times since, indicating that perhaps that is its main value. Steve Kramer, 1 April 2005
Seems more like an anti-gay flag, or at least for sexual conservatism. António Martins, 30 March 2005
I don't see it as either. I see the symbolism as more the yin and the yang of male and female, represented by the two most basic colours, coming together on the flag. David Kendall, 31 March 2005
We could call it "the binarism flag." In a larger sense, since the Rainbow Flag stands generically for diversity in addition to symbolizing gay identity, this could be viewed as a complementary uniformity flag. Eugene Ipavec, 31 March 2005
But in that case it would not be a real "heterosexual pride" flag, rather a "heterosexual supremacy" flag (it is difficult to separate these issues, especially when a majority is envolved, but it is possible), or even a flag against sexual orientation diversity. António Martins, 3 April 2005
An interesting "reaction" flag has resulted from the Gay Rights/Equal Marriage Movements of the early 2000s. The is called the Straight Pride Flag. It mimics the striped Gay Pride Rainbow by changing the rainbow colors into neutral shades of black, grey and white. Pete Loeser, text from Historical Flags of Our Ancestors, 26 May 2015
An image well executed, as usual, still there are some details which should be corrected:
most importantly, in the female sign, all four arms of the cross should have equal length;
also, black fimbriations of two signs should be wider; that should be corrected, though, so as not to reduce the width of yellow strokes, which is OK as it is now.
In the meantime, a variant of this flag with omitted black fimbriations of two signs, thus effectively conjoined into a single shape, is offered for sale here: http://dixiegiftshop.com/product_info.php?products_id=263. Also note that the relative position of the signs is somewhat changed there. Tomislav Todorović, 2 September 2019
During this march, in this video one can see other flags that were spotted as well, such as:
Blue and Pink flag (0:24 onwards) (the flag in question)
image retrieved by Esteban Rivera, 2 September 2019 1
Also, here's a graphic of the flag in its original design and resolution. It differs from the one just sent by Randy in the location of the diagonal line/stripe that divides the two colors, and also the pink color used by Randy is a little brighter than the actual flag, which is darker, sort of like magenta, but that can be a light effect by the original picture itself since the flag description states it is pink indeed.2
We have labeled the flag as "straight pride" but perhaps the right label would be "Blue and Pink flag" for the moment, as they mention on their official website.2
The advocacy group that promoted this "Straight pride" parade/march (as opposed to a "Gay pride" parade/march), and in fact an event scheduled during "Pride week" called "Super Happy Fun America," "advocates on behalf of the straight community in order to foster respect and awareness with people from all walks of life." 2
The flag is explained as follows: "The Blue and Pink flag, which has represented our community for over 0.6 years, is integral to our movement". They even intended to fly the flag at the end of the parade, as this statement shows: "The flag raising ceremony will take place immediately following the parade. The Blue and Pink flag will be raised over Boston City Hall. This will be followed by speeches and outreach to the community. We invite Mayor Martin J. Walsh to participate and express the city’s support for the straight community". However, that request has been denied, as follows: "Unfortunately, the City of Boston has discriminated against our sexual orientation by denying us the opportunity to raise the flag at City Hall. We will continue to fight for equality until the Walsh administration embraces our community and a more progressive vision of the future." 2
A second flag is the Straight Ally flag and is less ambivalent. Using the black-white "colors" of the heterosexual flag as a field, it adds a large rainbow colored "A" (for "Ally") to indicate straight support for the Gay Pride/Equal Marriage movement. Pete Loeser, Text from Historical Flags of Our Ancestors, 26 May 2015
These flags were indeed designed and widely used by the movement "La Manif Pour Tous," established in 2012 as a collective of associations and registered in 2015 as a political party. The flags are still in use. I should prepare a more detailed report on this one of these days. Ivan Sache, 28 July 2015