Anyone who supports the idea of communism isn’t very intelligent

This isn't fair. Anybody who can read through "das Kapital" must not only be very persistent and have endurance, no they also have to be fairly intelligent. I am surprised by the number of people who claim to have read "das Kapital" it has 4 VOLUMES ! 4 you can die if your bookshelf doesn't hold and these 4 volumes fall on you.

Being a communist is just a function of your social class in society. If you are a laborer or poor you are naturally going to seek to pursue your interests for example you do not want to labor and have all the value you create go to the owners. You want to have a bigger share of the outcome of your labor. Communism is the consequence of this. Just like the royals and aristocrats and the captains of industry have the conservative ideology to further their interest so do the poor have communism. Neither conservatism nor communism make you smart or dumb. All it is is people pursuing their interest based on what position in society they hold. Both are ok. And none are dumb. It is inherently intelligent to pursue your own interest together with others who share that interest.

Edit: I am not getting into the support of any regimes or factions of wars as that is a can of worms i have no appetite for. 😅