2nd Home Mortgage is reducing my interest deduction?

In 2019, we had 1 home (Home A).  Interest was $25,000 on $500,000 principal.  That $25,000 was fully deductible.

 

In 2020, Home A had interest of $24,000 and we bought a new Home B (bought in July 2020).  Home B interest was $20,000 on $1,500,000 principal.

 

According to my understanding of the IRS rules:

- Home A average balance: assume $500,000

- Home B average balance: assume $1,500,000 for July through December

- Total average balance is therefore $2,000,000

- Total interest: $44,000

- Qualified limit is $750,000

- Deductible percentage amount is $750,000 / $2,000,000 = .375 

- Deductible interest is .375 * 44,000 = $16,500

 

So, by buying a second home with a mortgage, I am now getting a lower amount of deductible interest.  Is that accurate?

 

Do I have to include the new home in the tax forms, or I can just ignore it and stick with the $24,000 from Home A as the deductible amount?