So the Democratic Party controls both houses of Congress and the White House, and they're trying to pass bills to give the Attorney General control over all federal elections in the country, but you say that it's "the Republican Party trying to engineer a de facto one-party state."
The big difference is that the Democratic bills all are focused on making sure that more eligible voters can and will get out to vote. They are not picking out groups and trying to discourage those from voting, which many of the Republican attempts at the state level are pretty nakedly doing (e.g.: limiting things that are only done in urban areas, killing Sunday voting because "souls to the polls" drives were so successful in areas that voted Democratic, etc).
So, yes. It is very much not the same thing. The Republican efforts behind a "voting security" banner, when Republicans in charge of the 2020 vote called it "the most secure ever", is nakedly trying to disenfranchise the vote to tip power in their favor despite the majority of eligible voters going the other way.
