No- he doesn't have a 'pretty good agenda". He is bent on increasing wealth for the wealthiest, decimating environmental protections and education, and healthcare. The military invetment (which provides more wealth for contractors- when the US already has the world's largest military industrial complex- is just a tax grab.
Where will the money for needed infrastructure come from?
He is increasing the debt while pretending that he is creating opportunities for Americans.

However, you are right that the Democrats have to concentrate on building their opposition- I suspect they will do so before the next electoral cycle.