BD is not ally of US and India, if it was, BD won't buy weapons from Russia and China.
However, BD has to consider India's interest because they has no option since they're surrounded. Sonadia port has no strategic value anyway, it's only a business port, China won't be stupid enough to station a fleet there just like Gwadar, quite easy destroyed by India Navy. NO, both ports are for business, it's same for ports of Sri Lanka and Myanmar.
Most KW here (keyboard warriors) here has little sense over geopolitics, driven by emotion.
1971 veto against BD has no problem because it's a separation from Pakistan, RPC and BD established normal diplomatic relationship few years later, the politicians from both countries understand this point that veto does not equal *against*, it's more complicated than that.
The veto on Rohingyas issue does not mean *against* BD, this is necessary to create an environment for reconciliation and practical solution except that BD want to escalate this issue into a more large scale collision, of course, this definitely lead to a big loss of BD.
In fact, the only event out of my expectation is Modi's visit to MM, India quickly fix their fault by abstaining its vote later. It's funny that BD members here even feel satisfied with India's abstaining. You need practical solution, not a veto or vote, this is where China can play a role nobody can replace.
