Besalel:
That makes no sense. What do you claim has “changed”? The nihye kiChol haAmim and rak biDam tihye lanu haAretz philosophy remains just the same; only now, the focus is keeping the land Zionist, CH”V. An even cursory glance at Zionist activities makes this quite plain.
The Brisker Rav and others did not change their stance even after the State of Israel was founded, and they lived there both before and after.
If anything, the Zionist shmad is even stronger now than it was then. Back then, they left alone the Chareidim about whom they knew it were hopeless to spout their Zionist fantasies to them. Instead, they made do with deliberately destroying the Judaism of our Sefardic brethren whom they had conned into moving to their “utopia”.
While the mitzva to live in E”Y might be in effect today, depending on who you ask, the mitzva to conquer E”Y as definitely NOT in effect today and is, in fact, strictly prohibited with severe consequences, R”L L”A, Hashem Yiracheim.