In this bear market, does 100$ on Ethereum or Bitcoin make any difference? As a newbie who have only 100$ to risk is this even enough? Can this get me anywhere?
It really depends on your perspective. If were talking about BTC or ETH, most likely it will be for long term without knowing when it will actually push through. The price movement is uncertain and unpredictable, so you may not know when will it happen and it can go up or down without warning.
If you are in long term hodling, I think that will really create a huge value in the future, but if you are only eager for short term profitability, i guess $100k will not be so valuable after that. So the decision is all yours. Either you go and invest with topmost coins or chose only altcoins because they are way more affordable and can be profitable sometimes, and most of the time are not.