Can I consolidate my illegal pdls too?

Yes. You can consolidate both legal and illegal payday loans. There is no problem in that because it helps to lower interest rates and save money. You don't have to pay 500% interest rate on the payday loans. This gives you a big relief.

If your balances in illegal payday loans are high, just forget about it! For illegal pdls, you just have to pay the principal amount, nothing else!
For your legal pdls, As David has suggested, yes, you can consolidate to make your repayment easier. Moreover, you have to make just a single payment monthly against all your unsecured loans and pdls.

Why are you thinking about consolidation illegal and legal payday loan? Remember, you just need to pay the principal amount. NO need to pay the interest.
And for your legal payday loans, you can take out a consolidation loan to consolidate your debts.

You can consolidate both legal and illegal payday loans. But generally, for illegal pdls you just have to pay the principal amount, nothing else!
I would also suggest you to consolidate only legal payday loans.