What if the Democrats pack the Supreme Court?

Every rule change has come back to bite them; this will also

Democrats don't consider the consequences of their actions until it comes back to bite them and then they accuse the other party of not being fair.
If Democrats packed the court, the next time Republicans had the presidency and senate majority, they would add more seats to the SC.

Can they find 6 judges that have as thick of skin and a diary like Brett to pass the test