Solzhenitsyn is wrong about 1917?
Please tell us what transpired.

I'm reading the biography: Solzhenitsyn: A Soul in Exile by Joseph Pearce (Revised and Updated Ed. 2021). It is based on the author's interviews with the man himself. It also makes a clear case that Solzhenitsyn's conversion was firmly grounded on his Orthodox faith. Other biographies don't touch this aspect of his life.
Pertinent to today's issues, his Harvard Address is very much worth a read: https://www.americanrhetoric.c....

I wish that you would give us some specific references justifying your critique of Solzhenitsyn.
It's just possible that we might interpret the facts in the same manner, but I doubt it, and without them, countering to your invective is impossible. I don't know where to begin anymore than a mosquito in a nudist colony.
Particularly egregious is the doubt you cast on Solzhenitsyn's sincerity as a convert to Chrisianity. That's gratuitously outrageous and, more so, as you ally him with a gangster like Putin!
Stop reading the junk news found in 'The Toronto Star' and let me recommend, Vol.II of 'The Gulag Archipelago' for insights into Solzhenitsyn's conversion to faith (and much else).
For insights into today's Russia as a gangster state, Anna Polikovskaya's 'Putin's Russia' makes for an education.
Putin doesn't like nosy reporters, so he ordered a hit on her. She was shot dead in broad daylight by her front door.