The Westminster System is the ur-example of modern democracy and it was the system of government by which Great Britain came to dominate the world. The hyperbolic moaning about how an Israeli government under that system would be the end of democracy simply exposes the utter intellectual incoherence of the socialists who dominate this board. Most of you do not care a whit about the constitutional order, you simply dislike the Israeli state and desire to see it governed by fools of your ilk.
Only incoherent socialists who dislike Israel are allowed to think that the British political system isn't the best form of democratic government in the world? That's sure news to me. Not to mention the majority of Israelis who oppose the reform...
You don't have to think that the British political system is the best in the world. But if you think it is crazily undemocratic for the Knesset to have the power to override the Israeli Supreme Court, but don't have similar objections to Parliament having the power to override the UK Supreme Court, then you should ask yourself whether you are truly objecting to the substance of the reform or merely the political consequences of it.
I have many problems with the British political system, one of which being the lack of meaningful judicial review or judicial checks on Parliament. However, the United Kingdom is an otherwise stable and democratic country, while Israel is a powderkeg which seems more likely to explode with each passing day now. I'd object to this reform in a vacuum either way, but I also recognize that it is a far worse idea when you consider Israel's current political situation.