@CaryBondoc It's not "if" you're going to give up on your current employer's b.s. but "when".
Going to their office to participate in the interviews is a logistical hardship. Do the math: one hour for being onsite and interviewing, maybe half an hour to prep for each interview - you gotta at least read the candidate's resume and cover letter, right? Then at least 30 minutes each way to and from their office. That's a minimum of 2.5 hours out of your life for each interview, pal. It's one thing if they ask you to do the interviewing while you are on the job and a whole other ball of wax if they ask you after you're off the premises.
If I were you, I'd tell them:
(1) "I have to think about it" - you really do have to think about it because you are being offered a bad deal and you have to rake your brains to find a silver lining in it. I could tell you that you most probably won't find that silver lining but I don't want to be cruel. Or maybe did I just tell you without telling you? :) The other reason is that each day you put them off is one day closer to the day you're finally outta here :) And you want to look like you're spending time thinking about it anyway :)
(2) On the day where you have to announce your decision, tell them that spending a minimum of 2.5 hours out of what's left of your life span for each interview is a logistical hardship for you, and leave it at that. If they keep pushing at it, repeat that 2.5 to 3 hours for each interview is a logistical hardship for you. Don't elaborate. Don't make a 4-hour speech out of it. Don't argue or let yourself drawn into an argument. If you don't learn to turn a deaf ear to an employer's whining, whimpering, yelling, screaming, pleading for mercy or inflicting guilt trips on you, you'll never grow up - or at least, you will never grow into the sick adult that I am :) - You're saying "no" without saying "no" :) Either they feel strongly enough about it to offer to pay your for your time, or they don't. The ball is in their court.