In my firsthand experience, people are generally more sympathetic and supportive if you are just passing through as a homeless person. They may give you a ride and/or a small amount of cash without you asking, but the US is actively hostile to pedestrians in most places and you have zero right to pitch a tent overnight anywhere.
2. If homelessness is something you dislike, the primary root cause of homelessness is lack of affordable housing. This is a nationwide problem, not peculiar to the West Coast.
So if you don't like homeless encampments, try to find ways to foster the existence of more affordable housing generally. It's a win/win solution that helps the homeless without rewarding or encouraging bad behavior and gets "the homeless" out of "your" face (not intended as a personal attack).
And has zero relationship whatsoever to this issue. None.