for a very long time which is nearly 9 years now, bitcoin had no issues, empty mempool and low fees even as low as 0 satoshis. and you were nowhere to be seen.
then this year, because of massive adoption that bitcoin had (adoption as a currency) the number of transactions suddenly grew too big and there was also the fight to take control of bitcoin was hot. so for about a month or so the spam attack was sever and  fees were high.

things were fine for a couple of months ever since that pre-August fights until for the past 3-4 days because of mining issues caused by bitcoin cash the mempool were big and fees grew two big.

you are using these two small incidents as your only point of reference and claiming bitcoin is not a currency!

either you are a fool or this is the only other explanation: