All those things you mention might sound nice and all, but yet again there can't be adopted in our country anytime soon. That will be too controversial here. If you know/understand british society well, you will know why our leaders can't adopt such measures.
Moreover, people forget to talk about the things the government can do that won't violate our laws or bring controversy. i.e some Islamic schools who preach hate and twisted radical islamic ideology to their young muslim pupils. Our government has been trying to shut many of them down(those refused to change or comply with government regulations even after being warned by the government) but they have succeeded in closing only a very few so far. The main problem our government has been facing is yet again :OUR LEGAL SYSTEM/LAW , as always. Lol
This is even despite calls for some of these schools to be shut down by the Department of Education. These radical islamic schools have repeatedly launched legal appeals and the government has been powerless to stop them.lol
Reason Theresa May has been calling for emergency legislation to shut the schools down. This legislation is still pending as far as I know.
It was said that young girls/pupils in these extremist islamic schools were reportedly taught that they can be beaten and raped by their husbands in order to “make Allah happy”.
One former pupil even said: “We were not taught geography, history or music and in art we just did knitting. We were banned from drawing anything with eyes. There was no sex education and we were taught that evolution was a belief of devil worshippers and atheists. Most of our day was spent doing Islamic studies".
https://www.google.co.uk/amp/s/www....-who-blamed-girls-for-poverty-in-britain/amp/
http://www.islamicpluralism.org/2607/uk-education-authorities-struggling-to-crack-down
https://www.google.co.uk/amp/www.da...hut-Government-use-courts-defy-ministers.html
https://www.google.co.uk/amp/s/www....u-hamza-to-use-as-a-jihadi-training-camp/amp/
So we also need to look into this. Imagine the ideology these young muslim children grew up with and how it has shaped their views. Can't imagine how they now view the world when they grow up.
It's true we are a country ruled by law and tolerance. However, even me, I believe sometimes we take this "rule of law/tolerance/liberty" too far IMO.