Because none of those plan on taking over europe. Russia still has the goal to directly control all slavic countries and indirectly control the rest of Europe. Most europeans remember the USSR.
Does being a democracy make the US a better country than the others? If it's the voters, and not a guy, who decides to invade and take over your country, then is it OK?
And while none of those countries may be involved in a military conflict right now, they've been in the past. Recently.
So given there is no good country selling gas right now, I prefer to get the cheapest one. Thanks.
Unfortunately it doesn’t even matter. The infrastructure simply doesn’t exist and takes many months to build. Germany could choose to buy from anywhere but it doesn’t matter, there’s no way to get the gas to where it’s needed in time for winter.