the pro-Putin lobby on here who are in favour of Russia's invasion and occupation of the Ukraine, have put forward a lot of verbosity, and plenty of C&P, but the arguments boil down to few
a) the invasion and occupation do not exist
b) the invasion and occupation are justified because Ukrainians are nasty.
To this, they have added some non-arguments, which are simply dishonest debating tricks
c) someone who disagrees with me is a Nazi
d) People who criticise Russia's invasion and occupation only do it because they hate Russians
e) (A bad thing done many years ago by a non-Russian) is relevant, but (a bad thing done many years ago by a Russian) is not relevant.
f) It's OK to invade and occupy or commit crimes because other people do it too.