"Let us come to dance" should have been accepted. Reported 2017/04/09.
Why not "we should..."? In other examples "(subj) should do" and "let (subj) do" have been interchangeable
Following
"Let us come to play/dance," is terrible English. 07062020
The English is unidiomatic. It should be "Let us come and play".
Or could it be either?