Unless you define it as "since the last elections", why is modern history relevant? Both parties operate in 'next election' mode and hyper partisanship is a recent development. You could claim that Democratic party in recent history advocated worker's rights, and was the party of labor. However, it isn't the case right now, as they become a party of identity politics.

For example, immigration. Democrats absolutely love malign conservative as racists over this. However, as a critical thinker you must acknowledge that there are non-racist reasons to oppose it. Especially illegal economic immigration. Yet, such acknowledgment is completely absent from any Democratic narrative.

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