I agree with you that we should all cast a wider net WRT the charities we pick, but I'll play devils advocate because that's what I do.
There are too many worthy issues. An organization like ycombinator or like its investments (Airbnb, Uber, etc) aren't altruistic by design, but can choose to be when they see fit. That's not bad. Right now it fits because there's either some PR to be gained (like Lyft) or some looming threat to fight (H1B visas and immigration). A tactical move like this is still good for everyone even if its motivation isn't philanthropic. It's a win-win. We should look at it more as a strategic investment for the common good.
There are too many worthy issues. An organization like ycombinator or like its investments (Airbnb, Uber, etc) aren't altruistic by design, but can choose to be when they see fit. That's not bad. Right now it fits because there's either some PR to be gained (like Lyft) or some looming threat to fight (H1B visas and immigration). A tactical move like this is still good for everyone even if its motivation isn't philanthropic. It's a win-win. We should look at it more as a strategic investment for the common good.