From your first link:
> Those donation totals may be explained, at least in part, by the former president’s policies related to those agencies. Trump has repeatedly vowed to eliminate Education if he is elected. He maintained an adversarial relationship with EPA, proposing in each of his annual budgets to decimate the agency’s spending and meddling in its scientific work. Trump instituted a longstanding hiring freeze at State and referred to it as “the Deep State” Department. Trump has also vowed to do away with a merit-based civil service for much of the federal workforce.
"Employees at institutions being threatened to be dismantled by a presidential candidate do not support that candidate" does not prove what you think it proves. In fact, the same link says Trump got 40% of federal employee donations in 2020, which is much more balanced.
Also donation amounts don't map to votes. From another link on the same site, https://www.govexec.com/pay-benefits/2016/10/federal-employe... --
> The lopsided donations do not necessarily reflect how the federal workforce is voting. The former State Department secretary led the businessman by 5 percentage points among federal employees in a July poll by the Government Business Council, the research arm of Government Executive Media Group, with 42 percent of respondents saying they would vote for Clinton, compared to 37 percent who said the same for Trump.
We'll need more substantial evidence to believe that these institutions are "permanently controlled by Democrats."