The constitution is perfectly easy to amend when we have consensus. The problem is achieving consensus. I don’t think making the constitution easier to amend would make it any easier to achieve national consensus.
The Constitution requires 3/4 of state legislatures to ratify any amendment. Given the extreme disparities between states in terms of population, it's entirely possible for something to be supported by >80% of the people - I'd say that reasonably qualifies as "consensus" - but still unable to be ratified. Conversely, it's possible for the small states representing less than 25% of the overall population to band toget…
I took the 2020 Census population figures from:
https://en.wikipedia.org/wiki/List_of_U.S._states_and_territ...
...and came up with the 38 smallest states (75% of 50) had a total population of 134 million or 40.5% of the U.S. population; the largest 12 states had a combined population of 197 million (59.5% of the U.S. population).