Inner tie rod removal issue?

They can be on tight enough that you end up replacing the complete rack to avoid damaging the rack internals. If you removed the bump stop behind the inner hex and now cannot get it to move you have an option of trying more force or replacing the rack. Don't try heat as it will damage the seals in the rack. What I have done is to get the tools set up so that you have tension on the tie rod then give the wrench handle a quick hit with a mallet to shock it apart. This isn't something you should do and is even warned against.
Caution: If the inner tie rod cannot be removed using the specified tools, do not use a hammer or heat to loosen. Damage to the steering gear will occur. Replace the entire steering gear. As such it's your call on which way you want to go.