but how do you even go from ‘everyone should have rights’ to ‘maybe we should cripple ourselves, the rich deserves more’.

You compare ideal left versus bad consequences of right. They do the reverse. Both of you feel good about your choices.

Both of you don’t see that it is divide and conquer and that the positions of the parties would shift if people started voting differently to allow the elite to choose their politicians.

To overcome this, you can learn to see the strong arguments of the right and the shortcomings of the left.