if you actually believe in socialism, that means you support socialism for everybody - including multinational corporations.
a socialist system is a holistic whole. it doesn't make sense to fund social security and medicare, then tell companies they need to compete over who can make the best car, and all you're going to do is threaten your social services if you insist on maintaining competitive business practices.
so, yes, i support socialism for corporations. i support socialism for everybody.
i guess you don't - because you're not really a socialist, are you?