the process, in brief, goes something like this:
- you write something (if this is the first time through this sequence for this work, it will definitely be bad. that's ok and expected)
- analyze that, which will reveal some significant flaws
- figure out some ways that may help with those flaws
- go back to step one with your improved understanding
this can be very frustrating to begin with, but after a few tries you will start to see some improvement, and maybe even something you actually like.
Of course "globalist" is a nonsense term, but we can still recognize that anti-semitic conspiracies use it and see that the specific tweet that you linked to is trying to frame Stalin's criticism of capitalism in terms of that anti-semitic conspiracy, which fundamentally undercuts the Marxist analysis that it is based on.
I also try to read widely. It's a good thing to do and one I strongly recommend at every opportunity. However, that doesn't insulate you from criticism of the things you share, and certainly doesn't excuse sharing anti-semitic conspiracy theories, which this is. It takes work to incorporate the useful parts of other ideologies into a Marxist analysis, and downplaying the bigotries of your sources is precisely the wrong way to do that.
I fundamentally disagree with your reading of that tweet. Saying that Netanyahu is Trump's master is very explicitly the "Jews control everything" conspiracy theory. This has been a key part of patsoc messaging around Israel the last couple of years and huge part of them trying to insert right-deviation into otherwise Marxist orgs.