https://fullfact.org/europe/how-many-uk-citizens-live-other-eu-countries/
1.2 million is correct.
Secondly, UK was indeed in the EU. By its own consent. So the rest of your post is simply nonsensical.
If the UK wanted to play hard, it could simply invoke Art 50 and leave. No reason to go EU begging for deals, if according to you, UK has all the leverage. So why doesn't it? How you think one country can bully a 27 nation alliance (which btw voted unanimously for no deal with UK unless it includes freedom of movement) is simply laughable. Pound has nosedived, companies are moving their HQs away from London, there is massive social division and these light bulbs want to play hard-ball. If the EU gives the UK a soft deal then it might as well cease to exist, as every disgruntled member would ask the same. You want access to a single market and all its advantages then play by that organisation's rule. UK is free to leave but then shouldn't still expect the same privileges.
A lot of garbage and propaganda in your post your friend Spookie has already posted, and it has already been addressed.
As for un-elected 'bureaucrats', its another myth. Every country elects MEPs, who then elect a leader in EU. Which is no different than how people are elected in any country. The House of Commons is un-elected, we might get someone ridiculous like Gove, all un-elected too. So save me the democracy speeches. The UK's mifortune was that the right-wing idiots first elected a BNP member and then a UKIP member as a MEP. Who had no real interest in representing UK.
What's more funny is you bashing immigrants. When you have South Asian ancestry, then went to UK and now is an immigrant in Australia.