YC is an investor in my company, and I donate about 50-100h of my time to YC every year. I agree that gives me zero ownership, but by the common definition of "stakeholder", it's reasonable to be upset.
I felt equally bad when another investor went off the deep end on anti-gun politics.
I don't even know what to say to the idea that you might believe your investors are obliged to either share your opinions about gun control or keep quiet about them.
The "trying to pressure portfolio companies into supporting political agenda on non-tech issue" was the part I objected to.
The issue isn't the specific policy viewpoints. It's using a commercial or other relationship to try to pressure for politics.
"sf.citi" was supposed to be focused on pro-business SF local politics, which is sort of reasonable. Gun control is literally orthogonal to technology.
I felt equally bad when another investor went off the deep end on anti-gun politics.