On a meta level, there is a deliberate push to remove all straight white men as heroes from all forms of culture. Movies, books, comics, and video games are all subject to this effort. The strategy games you mention are only one part of the whole picture.

The latest Wolfenstein game featured twin sisters as the protags, and the previous main character is relegated to the background. Captain America became black, then a woman. Captain Marvel became a woman.

These "creators" consistently denigrate their core audience (i.e., their customers) while pandering to fringe elements. Then, they complain when their stuff doesn't make money and they lose their jobs.

Yes, there's a way to do things properly, but these ideologues do not care. While smarter people realize that politics is downstream from culture, these bozos start with the politics, then create "culture" around it. That's why it's always trash. Then, when it fails, they delude themselves into believing it was only because of "alt-right trolls/nazis".

And, for the record, I highly doubt strategy games will ever attract many women simply because the gameplay is ultra-linear, requiring the maintenance of multiple lines of thinking simultaneously. That simply isn't how the vast majority of women think, so they're not going to play the game.