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.
Or you can lose all your money, can't you? Investment in bitcoin is risky deal, and what we can say about altcoins?