The wanting of power is more enjoyable than the having it.

Power is the same world wide.
It is bought by buying people to do your bidding.
After awhile the money or people dry up and the cycle begins again.

In 8 years you will see that things should swing back toward a realization of a Britain that is less polarized than today.

As for the US if 3/4 of the people vote they will have four years of Trump and many wincing moments of embarrassment.