[Curious question] Are the Dems still a real opposition party or are they too happy to kiss Trump's ass?

Please forgive my language but probably like many I'm pissed at the latest trend of Democratic members of Congress and other elected officials willing to grovel at Trump and either speaking favorably of him or OK with playing along w/o holding him accountable. I wonder if the D's have simply given up or maybe this could be a Trojan horse as they'll strike back hard later on into Trump's term. What's going on?