Why doesn't government make the profit themselves to then help people, instead of using taxes? Why not create more non-profits that are self-sustainable?

Yes, IMHO, all we have is to rely on the goodwill of others. Even when it comes to taxes, we're expecting people won't use loopholes and evade paying them, yet that's what happens anyway. Not only is government extremely slow and wasteful at solving problems, coercion is not effective.

I think we already pay more than enough taxes to solve most problems in society. For example, San Francisco has spent billions on trying to solve homelessness and failed pretty hard at it. I think billions of dollars should be enough to solve the homeless situation in one city, so I think the first question is why is it that the current taxes isn't enough? (and also as I mentioned, where is the accountability)