You are bringing up the fundamental issue of our time(and since the War between the States), and that is federalism. Keeping a state's right to remain sovereign is fundamental in this country.
To allow the federal govt to usurp that right takes away all opportunities for someone to leave that state and better themselves.
California should remain free to rule its citizens by taxing them to death. That is its right. It is also a right for citizens of CA to leave for greener pastures.
Once all taxes and rules are made by the feds, there is no opportunity left.
I for one do not wish my state to have to absorb the largesse created by the govt in CA. Let them die of their own choosing while my state prospers.
When it comes down to deciding who can be in the country legally, that is a national issue affecting all States. It is an issue over who crosses an international border and is allowed to stay--and thus, Federal.
If granny wants to pack her pipe with weed and sit on the porch, that does not so much affect the rest of the country (because granny will be subject to other State Laws when she crosses State lines. It could be argued that there is no Constitutional Authority for the Federal Government to regulate what a person consumes, so there is infringement on States' Rights for the Federal Government to act beyond its Constitutional Authority to regulate marijuana use, and that that decision should fall to the states and their legislatures.
But illegal aliens have already crossed the
international border, and for a State/City to harbor them only shows contempt for national security. Providing for the common defense (against invasion) IS a Constitutional duty of the Federal Government. I don't see that as a State's Rights issue.