The rule against ending with a preposition is falling out of favor.
The rules of English grammar have not changed. Your overwhelming desire for poor grammar to be the accepted norm, however, is noted.
The rules of grammar can certainly change, but that's not going to happen by your mere declaration. Having said that, let's appreciate some Beowulf.
HWÆT, WE GAR-DEna in geardagum,
þeodcyninga þrym gefrunon, hu ða æþelingas ellen fremedon! oft Scyld Scefing sceaþena þreatum, monegum mægþum meodosetla ofteah,
egsode eorlas, syððanærest wearð feasceaft funden; he þæs frofre gebad, weox under wolcnum weorðmyndum þah, oð þæt him æghwylc ymbsittendra
ofer hronrade hyran scolde, gomban gyldan; þæt wæs god cyning! Ðæm eafera wæs æfter cenned geong in geardum, þone God sende
folce to frofre; fyrenðearfe ongeat, þe hie ær drugon aldorlease lange hwile; him þæs Liffrea, wuldres Wealdend woroldare forgeaf,
Beowulf wæs breme --- blæd wide sprang--- Scyldes eafera Scedelandum in. Swa sceal geong guma gode gewyrcean,
fromum feohgiftumon fæder bearme, þæt hine on ylde eft gewunigen wilgesiþas, þonne wig cume, leode gelæsten; lofdædum sceal
in mægþa gehwære man geþeon. Him ða Scyld gewat to gescæphwile felahror feran on Frean wære; hi hyne þa ætbæron to brimes faroðe,
swæse gesiþas, swa he selfa bæd, þendenwordum weold wine Scyldinga leof landfruma lange ahte. Þær æt hyðe stod hringedstefna
isig ond utfus, æþelingesfær; aledon þa leofne þeoden, beaga bryttan on bearm scipes, mærne be mæste. Þær wæs madma fela
of feorwegum frætwa gelæded; ne hyrde ic cymlicor ceol gegyrwan hildewæpnum ond heaðowædum, billum ond byrnum;him on bearme læg
madma mænigo, þa him mid scoldon on flodes æht feor gewitan. Nalæs hi hine læssan lacum teodan, þeodgestreonum, þon þa dydon,
þe hine æt frumsceafte forð onsendon ænne ofer yðe umborwesende. Þa gyt hie him asetton segen gyldenne
heah ofer heafod, leton holm beran, geafon on garsecg; him wæs geomor sefa, murnende mod. Men ne cunnon secgan to soðe, selerædende,
hæleð under heofenum, hwa þæm hlæste onfeng. I Ða wæs on burgum Beowulf Scyldinga, leof leodcyning longe þrage folcum gefræge --- fæder ellor hwearf,
aldor of earde--- , oþ þæt him eft onwoc heah Healfdene; heold þenden lifde gamol ond guðreouw glæde Scyldingas. Ðæm feower bearn forðgerimed
in worold wocun, weoroda ræswan, Heorogar ond Hroðgar ond Halga til, hyrde ic þæt wæs Onelan cwen, Heaðo-Scilfingas healsgebedda.
Þa wæs Hroðgare heresped gyfen, wiges weorðmynd, þæt him his winemgas georne hyrdon, oðð þæt seo geogoð geweox, magodriht micel. Him on mod bearn,
þæt healreced hatan wolde, medoærn micel men gewyrcean þonne yldo bearn æfre gefrunon, ond þær on innan eall gedælan
geongum ond ealdum, swylc him God sealde buton folcscare ond feorum gumena. Ða ic wide gefrægn weorc gebannan manigre mægþe geond þisne middangeard,
folcstede frætwan. Him on fyrste gelomp, ædre mid yldum, þæt hit wearð ealgearo, healærna mæst; scop him Heort naman se þe his wordes geweald wide hæfde.
He beot ne aleh, beagas dælde, sinc æt symle. Sele hlifade, heah ond horngeap; heaðowylma bad, laðan liges; ne wæs hit lenge þa gen,
þæt se ecghete aþumsweorum, æfter wælniðe wæcnan scolde. Ða se ellengæst earfoðlice þrage geþolode, se þe in þystrum bad,
þæt he dogora gehwam dream gehyrde hludne in healle; þær wæs hearpan sweg, swutol sang scopes. Sægde se þe cuþe frumsceaft fira feorran reccan,