I did the timing belt on my '07 Highlander a year and half ago and I understand totally! I had a 4 foot breaker bar on the crank bolt and I bounced up and down on it for at least 20-30 minutes before it finally broke free.
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2003 Limited, V8, AWD. 4600 Bils/FJ springs, 1/2" spacer, SPC UCA, Super Pro bushings in front LCA and in all rear control arms, Michelin 265/65R17 LTX/Defenders, stock wheels with homemade center caps, Stop Tech slotted rotors w/Posi Quiet pads all around.
Put a timing chain and oil pump on a Sentra years ago. Could not get the Crank bolt to budge. My buddy who worked at an ASE shop, told me the secret of wedging a 4' breaker bar against the floor, next step you disconnect power to the distributor, and then crank the starter. The front of the car raised up about 4 or 5 inches, then the bolt finally broke.
The bolt in the video is definitely in the top 5 lol.
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1988 DLX 22RE AUTO BLACK-"Granny" - SOLD
2003 SR5 SPORT V8- Build- "Pearl" You Tube 2UZ 120
2012 LIMITED V6 "LE Mae" 5TH GEN BUILD THREAD