Not sure if your referencing my list here but will assume you are,
1) Despite that the EU is still the largest Economic group in the world
2) would happen anyway, we have passport control anyways, nothing would change on the illegal's front, If Criminals and Terrorists want in they will get in. Not that we've had any terrorists come in yet.
3) was added as the Tories have said they want to break away from the ECHR in the past, its not clear if this is linked with the EU exit. Hence me saying as much.
4)
https://fullfact.org/europe/uk-jobs-and-eu/
5) And us exiting it would make it even less stable and would likley cause a global crash.
6) Symantics, the EU get given money by member states, that money is then dished out by them. ergo they fund things!. the same way a government funds things from Tax.
7) A bit off the wall but the EU set up and provides a lot of consumer protection that we didn't have before and may not have after. be it refunds to saftey levels etc.
8) See point 2.