We have 2 options. Sin or don't sin. I choose don't sin. Doesn't mean that I considered/struggled/lusted to sin to come to that conclusion.
Jesus had the options set before Him and He chose not to sin.
Yes, we all agree Jesus did not choose to sin, but to say that He was internally tempted is also very problematic. It would mean He is not God if such were the case because James 1:13 says God cannot be tempted with evil.