Such agenda
does ruin games, like, for example, Mass Effect Andromeda, Wolfenstein 2 or Battlefield V. The ME:A game designer was openly SJW and spent some time online bashing white people. And the final game definitely shows his influence.
The tactics adopted by activists in games is the same as adopted in other media (comics, TV, etc). If you think differently then they'll accuse you of being a bigot, misogynist, etc. This is designed to bully companies and individuals, who might be justifiably worried about their finances and careers, into complying. They are trying to twist companies arms by defaming them.
Here is a perfect example of how SJWs operate.
Another example was ArenaNet firing coverage. It was one-sided and designed to "punish" the company for not bending the knee to their ideology.
This is as big of a problem in gaming as lootboxes, if not bigger. Downplaying it is intellectually dishonest.
People don't "like games less" because someone says something negative about them. They are worried that because of metacritic scores and bullying game developers will bend the knee and adopt this SJW agenda into their games (butch women, effeminate men, feminism, political shaming, safe spaces, etc).