Your ignorance of law of supply and demand shows after making your statement. The fees will always be proportional to the value of Bitcoin. Nobody is dictating the fees.
And you're one fine example of ignorance.
1 June 2017 , average fee 4$ ,
BTC price 2.3k$
1 October 2017 , average fee 2.5$ ,
BTC price 4.3k$
1 December 2017, average fee 6$,
BTC price 10 k$
1 January 2018, average fee 24$,
BTC price 13.5 k$
Right now, average fee 3$...
BTC price 10 k$
What is proportional here?