Bitcoin has just done the biggest dump today! from 104k to 96k. I just went through the past..
Left: ETH
Center: BTC.D (dominance)
Right: BTC
Here we have clear visibility of the rotation of funds from BTC to ETH. We can see that on the previous cycle, after the first temporary top of Bitcoin (65k), with a bad candle closure, the dominance continued fall in down and for 2-3 weeks after, ETH registered a +70% , despite to BTC.
Hope that this could help you to stay on your ALTS plan and to don't care about the FUD you're feeling with these movements.