From a "lets make the world a better place perspective" should we support only bitcoin right now or altcoins also?
Who is 'we'?
If you want to miss out on opportunities that currently undervalued alt coins present, sure, don't buy them, buy them later when they are more expensive

That doesn't say all alt coins are ok to buy. Do your own research and due diligence.
To clarify, we is basically everyone in the crypto community currently.
I have alts yes but that is for selfish gain, im talking about whats best for the world politically.... some have said they prefer everyone focus on BTC right now - Im not sure & need convincing of this argument.
Politically, we should be trying to foster corporate adoption of blockchain technology. bitcoin is a payment system at this point; although we could layer like omni, it would be inefficient, given the processing back bone of BTC (all that power!). Alts shine for this, instead of being an all purpose thing like bitcoin, the blockchains address specific needs, taking traffic off of other blockchains so that the whole sphere can operate at its best.
bitcoin itself should not be the agenda to push. its whats underneath the hood.