Deductions & credits

If schedule A line 16 is $34,600 ($25,10+9,500 loss) under name other itemized deductions and

 

form 1040 line 12a is $34,600 therefore

 

My question 

 

Can I report $600 as charitable deduction in form 1040 line 12b?

 

If not, why (joint filer tax year 2021)?

 

Please let me know. Is very important to me? Thanks for your help I really appreciate it. I am just a regular user of TurboTax without much tax knowledge.