That’s not true. Russia was perfectly fine with a sovereign Ukraine, as long as it respected their own constitution and terms of separations from USSR: to be a military non aligned country.
It’s not so hard to notice, that all the problems started when the other side of Budapest memorandum decided to not respect it anymore. Since 2004 Ukraine became less and less sovereign, resulting in a puppet government installed in 2014 and starting the hot phase. It’s also not hard to notice, that at every step Ukraine could chose negotiations, but was pushed towards more confrontation by Western bakers.
It’s not so hard to notice, that all the problems started when the other side of Budapest memorandum decided to not respect it anymore. Since 2004 Ukraine became less and less sovereign, resulting in a puppet government installed in 2014 and starting the hot phase. It’s also not hard to notice, that at every step Ukraine could chose negotiations, but was pushed towards more confrontation by Western bakers.