Look on the bright side, none of this will actually happen since a) the administration is much better at talking about how they WANT things to be than formulating actual policies and MAKING them happen and b) Trump legislative priorities are mostly DOA nowadays.
That being said, this is definitely something that is happening on the state/local level and like everything else in life, nothing is black/white. I don't have a problem with the government allowing private ownership of infrastructure if they themselves are paying for the project ( or at least contributing to it). And you can't complain about crumbling infrastructure and also be against raising the gas tax (which primarily funds infrastructure costs).
I think the best thing that could happen is that the power to privatize existing public infrastructure should have to go through some additional level of scrutiny beyond the machinations of the mayor/governor etc. Otherwise you have situations such as in Chicago where Mayor Daley gave away all of the City's parking meters to an investment group overseas (that I believe he ended up doing some work for after he left) for pennies up front. They now have a 99 year lease and are RAPING the City and anyone who drives.
As far as the unions go, I have no problem with workers uniting to fight for their best interest. But one unintended consequence is that when governments require union workers for public projects, they make it impossible for small companies to compete for and win those contracts. Those unions have tight relationships with the big boys and newcomers are typically shut out.
or a 
i'm guessing
this time.
