Socialism...

Socialists thinks its okay take/steal money from other people.

Then it doesn't matter if they think the money will be spent better, its NOT their money.

For some reason stealing can be legal, just if over the half of the population agrees...

How did this unbelievable sick idea came through in countries such as Denmark?

You silly, it's just collecting cash in a kitty and spending it for the good of the people who put it together.
Like if we have a club, and we all put $5 in the kitty, and we vote to use it to put a new roof on the clubhouse. Just on a grander scale.
If you don't like it, leave the club!