Both the DNC and GOP are Capitalist parties. The GOP is a far-right populist party, and the DNC is a right-wing Liberal party. They have numerous differences, but also numerous similarities. They can be compared both ways.

The United States is the global Hegemon, with a firmly entrenched Capitalist class that dominates the media and both major political parties via donations and funding. The parties care more about maintaining the good graces of their donors than they do materially benefiting the public.

No, both parties are not the same, but both draw their support from the same direction and as such ultimately move in directions that service those that support them.