Who's more responsible for the decay of democracy in America?

[🐒Gods of Prosperity🔱🐲💸]

Both parties have for decades increasingly consolidated power - in congressional leadership, the Presidency, bureaucratic agencies, the courts - to diminish the importance of individual Congressional representatives, the key democratic body of our federal Constitution.  Meanwhile both parties design gerrymandered districts in order to maximize party influence & hit racial quotas, further reducing the democratic role in selecting our representatives.   And both parties do whatever they can to make it difficult for other parties to break through or even make it on the ballot.