I don't think you can read.
The infrastructure STARTED in shambles under communism. Do I also blame the execution of bookwriters, of scientists, of priests, of many people on "neoliberalism" too?
Or maybe do I blame the displacement of hundreds of thousands of people from their homes because the government back then wanted a building on neoliberalism? (P.S: it was the homes of ethnic minorities mainly! isn't that sweet?)
Or maybe the forced labour camps if you didn't do well enough in school/if you criticised the system/etc. I'm sure lots of neurodivergent people LOVED failing school due to things outside of their control, and instead of getting supports built in place and any form of aid, they got sent to dig and mine and farm.
Or maybe the forceful movement of populations from rural areas to urban centers and it's consequences on agriculture. The examples are endless (might vary per country), you just gotta open a damn history book.
Or maybe waiting in line at 5am to get food, or the scheduled blackouts at 10pm, or maybe the closed borders. I'm sure these were great lovely aspects, right?
And before you misread again, I am not saying whatever the hell is going on now is perfect or does not do similar things. But you seem to be under the false impression that USSR was this nice little union, with it's nice little system. It wasn't, unfortunately.
Meanwhile I can look towards countries that were under capitalism in that same era, and it seems most of them are thriving (see: most of western Europe), whereas it's only been the last decade or so eastern Europe has been getting a foothold.
So don't tell me people sacrificed their lives against this system because it was too good and nice. People don't go spilling their blood on the streets to change a system they like, do they?