Because most (not all) of the Democrats are trying to govern, but most (not all) of the Republicans are trying to take advantage of the system.

The problem (as I see it) is that more money is being poured into the Republican party from many angles. They have reinforced think tanks, special interest groups, media platforms, billionaires, etc where they profiteer off of winning. The Democrats have some of that, but woefully behind.

Upset with Democrats for following the rules and blame them when Republicans break the law? We want all parties to follow the rules, not more politicians commiting crime to get their way.