Platner is fundraising by dissing Democrats [View all]

I live no where near Maine, but recently got this text from Platner, and this is the way it began:

Okay, I see primary fundraising texts often that bash their opponent and that's not surprising, but I rarely see one where they bash Democrats as a whole. Why not blame the Republicans who are doing this crap instead of Democrats who are quite limited in what they can accomplish at this moment in time? How does this help Democrats overall?

Not all that long ago we had two newly elected Democrats switch to Republican in my state, so I'm already feeling betrayed by what are apparently Republicans running as Democrats. This text from Platner just strikes me as wrong.