Seriously can you not read? "Any EU member could in theory do this". You literally fucking quoted something proving you wrong. The fact that no other EU member chose to do it has fuck all to do with the fact that they can and so could the UK if they remained in the EU like you falsely claimed they could not. And the person you quoted provided multiple sources showing that yes you are as of right now still subject to EU laws and regulations proving you wrong on another claim.
Even if you want to try and attribute this to Brexit, you can't unless you're an idiot, the best you can say is that pro-Brexit politicians would have been more likely to make the move. A move they 100% by your own source could have done if they wanted to still stay in the EU. I'll restate because I suspect you still don't get it.
Brexit itself did nothing to allow the UK to do this as you are still 100% subject to EU laws and regulations. Your own source confirms that.
The best part is? That trash tabloid literally in what he himself chose to quote from it proves him wrong.