"My preference is to be an EU citizen in the UK. If that becomes impossible then the opt-outs are not a problem for me."
Cool. So no need to kick out brexiters, you can go to the EU and everything is fine. Awesome.
"What benefits to you expect from Brexit?"
There are a number of benefits I have discussed many times. The benefits I usually discuss are of the following- economic, democratic, economy, trade, sovereignty. Happy to discuss if you like? Pick one.
(FYI I did not downvote your post)