It's absurd disinformation to paint all pornography this way. For only the most obvious example, please explain in detail how porn studios only featuring men do this?
I mean, if even the British Royal Family had to change its name from the House of Saxe-Coburg and Gotha to the House of Windsor…
According to the Tampa Bay Times, the colors are fairly recent and largely a result of media depictions of electoral maps. It is not an official choice by the party.
https://www.tampabay.com/things-to-do/visualarts/the-origins...
The idea of colour-coding the parties at all didn't really become widespread until 1980, and the exact colours in use weren't standard until the aftermath of the 2000 election - ABC had initially used yellow for Republicans, and even as late as 1996 The Washington Post, Time, and NBC were all still using blue for Republicans and red for Democrats, in line with the colour schemes of most other nations.
I'm also seeing a variety of results saying that prior to that, the incumbent party was typically shown as blue on graphics, and the challenging party was red. In 2000, those colors lined up with the current party associations (Gore being a dem like Clinton), and that election cycle was a publicized enough election that the colors stuck to the parties.
To be clear, this is what (many) progressives call policies like "making it illegal to mutilate the genitals of children," or "keeping men out of women's prisons."
Some parts of the right-wing social agenda (abortion restrictions, for example) are broadly unpopular. But protecting people from the gender cult is a winning issue politically.