I didn't agree to have 27 other countries dictate how my taxes are spent, who comes into the UK, what laws we follow and how we trade with the world. So I want to leave the EU and have the UK control these things. HTH
No it doesn't help. The EU does not dictate how we spend taxes on health, education and housing, to name three major areas. Nor do they dictate defence spending which if it's dictated by anyone is NATO. I don't recall having any input myself into what goes on in NATO, but somehow that's different.
Many of the EU laws that we have adopted whisper it quietly were proposed by the UK. We have accepted the vast majority of the laws proposed without demur - if we felt strongly we could have objected as members with a vote.
Germany manages to do a lot more trade with the world than the UK does. Somehow being a EU country doesn't stop them, but stops us. Maybe it's because they are more efficient.
Who comes into the country is largely controlled by us. Successive Governments haven't bothered to use the laws available to them, but the blame can't be pinned on the EU.