The party who can form a majority government get power in this country, but doing so gives them power over both the executive and legislative functions of the country, in the face of such power the judiciary isn't particularly powerful. The government can do anything and then just pass a law to justify it (and it has done this several times), they can ignore court rulings, they can use all kind of tricks. Who holds the PM to account in the UK? The opposition party? What real power do they have?
I don't really understand this. The current Tory Government is exceedingly weak. Not only do they have to get all their infighting and backstabbing backbenchers to vote with them, but they also have to persuade (sorry - I mean buy) the support from the DUP.
And the courts regularly hold the government to account, as do the opposition. There have been a number of judicial reviews that have caused the government to go back on its ideas and at one point the Tories were falling over themselves to bring forward legislation as their own that was originally proposed by Corbyn.
The executive is accountable to mps and the house of lords.
The govt can just pass laws after doing illegal things, process of changing a law requires building consensus and takes times.
Also the UK system is more preferable to the gridlocked system of america.
The Judiciary cannot be ignored, as we saw with triggering article 50. If anything the PM is very vulnerable, only need less than 10% of MPs in his or her party to start the ball rolling of a new pm
The Cabinet is not the largest party. The largest party selects the Cabinet, but then the largest party and the other parties hold them to check.
The UK judiciary is the strongest and most independent in the world.
recently the courts forced the govt to change incapacity benefits for mentally ill people and gordon brown failed to get 48 day detention passed due to the Lords, your assessment of the Power of the PM is fundamentally flawed.