>> I suppose my main question is whether my support of legalization would negatively impact me within the
Church of Satan should i choose to join. <<
Providing you refrain from stating any usage of the drug until the day comes that it is no longer illegal, I doubt there would be a problem.
We do not oppose the right to work to
change laws in accordance with our own viewpoints or the right to
disagree with state imposed laws. That is what a democratic country is. We only oppose illegal activity in itself.