This is... not true. Orrin Hatch said if Obama nominated someone like Merrick Garland, the Republican Senate would approve it. Obama nominated him, then the Republican Senate said "psych."
The checks and balances were broken by the Republican Senate because they decided "advice and consent" could be abused to mean "wait until there's a Republican president."
The public decided the solution to this was selecting a Republican president and keeping a Republican Senate. It's a perfect plan for Republicans, because people on the left just blame Democrats so that the same pattern can happen again next time.