LOL, absurd. You're basically saying the same levels of immigration are inevitable whether it's legal or not. I don't think the majority of EU migrants are criminals who would choose the illegal route. Nonsense.
Nope, I'm saying we will probably get more immigration
legal or otherwise, not less. Almost every EU citizen is "legal" now, right?
Once
some become "illegal" they can still come, unannounced, through the back door.
So we have the illegals already here + those "new" ones coming in from the EU, on top of the legit ones
+ their families.
So apart from legal immigrants; net illegal immigration will be higher, except it won't, officially, as they won't be counted, so we'll never know - hence the "con".
And, of course, there will be a length of time before we leave the EU so during that time there will probably be a flood trying to get in before deadline day, probably way above normal levels.
BTW the final sentence doesn't make sense, you are only an EU migrant "criminal" after Brexit if you enter the country without, well, permission ie. for work, tourism or study, as I see it. If they can't get in on those grounds, and have no other good reason (relatives here?) but STILL want to come, the back door's open.
I keep reading from Brexit that 70 million Turks are on their way. OK, a slight overestimate, but if (and it's a big IF, they have to get out of Cyprus first) they join the EU I'm sure many thousands (hundreds of?) will want to make their way in - in any way possible (Irish route, or even a dodgy dinghy). That's what Brexit keep telling me, and they must be right, surely?