Jadeja is largely a HTB. Only two of his eleven fivefers have come outside India. Just three centuries in sixty tests isn’t great, with <30 average overseas.
I don’t fear him when he comes to England. 46 average with the ball here.
It's not unusual for specialist bowlers to have 2 5-fers outside home. At least his overall record is great and he ensures lot of wins at home.
For ex - Anderson had 3 5-fers outside England in first 100 tests.
Ben Stokes mostly hit and miss batsman. His average of 36 in tests is manageable only because other batsmen in England have been poor.
No one fears Stokes outside England either in test cricket.
Jadeja the batsman is more valuable than Stokes the bowler. Jadeja the bowler is not hit and miss like Stokes the batsman.
I mean you would hardly see Jadeja come up with performance like Ashes 2021, where Stokes scored runs at avg of 23 and picked up 4 wickets in 5 tests.
In comparison to that Jadeja scored 85 runs in 2 tests with 7 wickets. Surely Jadeja isn't effective like he is in subcontinent as bowler.
When England came to India, Stokes scored at avg of 25 in 4 tests and picked up 5 wickets. Nothing to show either as batsman or bowler.
When India toured England, surely you are not afraid of Jadeja who picked up 6 wickets in 4 tests, but he scored 1 century and runs at avg of 31.
Not to mention, Stokes can hardly match Jadeja's contribution at home.