

That’s a good sentiment to have for things that need to be built for society as a whole. You don’t need to extend the same courtesy to for profit endeavors that don’t provide a general benefit.
This is not standing up to support building a homeless shelter in your neighborhood, because it has to go somewhere. It’s more like supporting a McDonald’s. There’s plenty of them already, and they have plenty of other options for building more.

About the same.
It depends a lot on the topic. For topics that are polarizing and those where I know I disagree with the popular sentiment, I’m more lenient with downvotes. But it’s always at least a yellow flag to have a lot of downvotes.