I don't believe the migrant crists and Brexit are as inexctricably linked as you would like to believe gulliver, in order to have a pop at the government.
That said, you point is valid - I do wonder if the government really is serious about stopping the mass influx of immigration, since they appeare reluctant to take any meaningful measures.
Other countries simply refuse to take people arriving illegally, we seem keen to put them up in hotels.
If the government is serious about addressing this increasing problem, lt needs to do something and be seen to do something, or stop making a song and dance about doing something, when it clearly has no intention.
It needs to be one or the other, and soon.