I wouldn't say you were rude, just.... less than engaging
Your email:
Hi [name of contact],
Thank you for your email! I'd be pleased to chat with you further. I'm available for a chat anytime after [day/time] if that works for you, otherwise I should also be available on [alternate day] if you let me know what time suits.
Kind regards,
[my name]
I would be more engaging and eager if you're really interested.
Hi [name of contact],
Thanks for reaching out to me. I am very interested in speaking to you about this opportunity.
If you have their phone numer...
As a follow up, I'll call you on Tuesday at 10. If this time is inconvenient, please let me know, and I'll reschedule.
(that's not giving them a chance to ghost you, and it demonstrates initiative)
If you don't have their number, try this...
Please give me a call on Tuesday at 10, if this isn't convenient, please let me know so that we can arrange another time. As a follow up, I'll send a follow up email at 8 am on Tuesday morning to confirm.
(again, this shows initiative)
Kindest regards [your name]
If you're still getting ghosted after that, just chalk it up to incompetent recruiters and move on. It's them, not you.