You mean like how Dany could kill Cersei without killing Tarly’s?
You can believe whatever the hell you want. Her actual words were that she would burn her enemies cities and return them to dust. So your beliefs don’t match up with her words of intent. Words she’s laid out many many times.
We know for a fact all the slave owners weren’t evil. We know for a fact a fact Randyl and Dickon were no longer a threat. She claims she will do one thing many times and you say “I believe she would only do it if it meant killing Cersei”.