A private business can refuse entry for almost any reason or none.
That doesn't sound like a productive plan, but I won't stop you.
What do you want to accomplish?
Run for office.
We (patriots) HAVE to take back the local government.
Help a patriot that is running. Get involved.
Judicial Watch Sues California to Stop Governor Newsom’s Initiative to Provide $75 Million in Cash Benefits to Illegal Aliens
https://www.judicialwatch.org/press-releases/jw-sues-newsom-aliens/