Why should a 'stronger' currency 'hurt'?
Because of misplaced priorities. If you are dependent on exports (misplaced priority), you think you want a currency weaker than your target currency.
Yet resource weak countries, like Japan, had no choice in the struggle for dominance but to become attacker exporter states, predicated in part at first on a weak yen (the 50s 60s).
The solution (for us) would have been to nip their aspirations in the bud, back then, rather than to have fed them and thereby weakened our domestic economy, and thence our 'currency' as well.
Of course there is and has long been a chorus of objections from the Presidency, state and defense.
What have these 'reasons', grounds, amounted to, in the long run?
Wind, Zephyr, air.
Terms search also: Mary Poppins, dumb dumber, on the other blog's Bing.