At this time every alt going pump and pump but you right ethereum is doing well so i think ethereum is now dump is possible because when any token or coin doing pump then dump is also doing as well..
You make a point I have to admit, however you can look up eth usd chart and notice an obvious difference between previous eth pumps and this one.
As OP said - Eth going up day by day and it seems for me that down trend was broken and up trend is gaining its power.
Moreover, It looks like ethereum is the power of whole bull market this time, not bitcoin