Do supporters of marijuana legalization also support legalization of meth, ecstasy, desomorphine and heroin?

I think we’re losing the war on drugs just as we lost the war on alcohol with Prohibition. Better to legalize, tax and regulate it. You’re not going to stop it, and it would vastly increase revenue through taxation and reduce expenditures through spending on imprisonment. Drug enforcement would still be needed to keep it legal, but not to the grand scale it is now.
The great conservative William F. Buckley Jr. supported drug legalization and it made sense to me then as it does now.