I think the meme is low quality and needlessly provocative (no offense OP I guess), but the answer is likely complex. Once the republics are under the purview of the USSR, the resources and engineerong may well have come from elsewhere in the country, even if the construction crews were primarily local people.
I don't know enough about Soviet construction to provide an actual answer, though.
Thing is that the workers in those countries were Soviet as well. Credit goes to the labor regardless of nationality. The softening of national divisions was a great achievement of both the USSR and Yugoslavian socialist governments. It has been disastrous that those institutions weren't able to prevail until the current day (they should have evolved instead of been abolished, but I don't know enough to comment much further).
I don't agree with the depiction of the USSR as an outside force that developed these countries "for them". It was an opportunity to come together under one republic and develop.
I think the meme is attempting to disparage the "ungratefulness" of present day liberals in these FSU countries, but I think it lacks nuance to say the least.