bitcoin was never meant to be "instant-confirmation" and people have been using it fine so far knowing it is not like that.

although bitcoin fees these days are not a problem as you think but i agree that having such high fees and having them shoot up like what it did over the past 30 minutes is bad for bitcoin adoption as a currency.

as for price, investors have shown that they don't care at all about price and so far they continue buying. in fact these spikes is exactly because they are buying bitcoin! and in the long run bitcoin scalability is improving so you can't really say it won't go up in long term.