Your link agrees with me.

Arabs have sat on the Supreme Court and worked in the foreign service, with a handful serving as ambassadors since 1995. Many have served as mayors, judges in lower courts, and in civil service positions.

Sure there is some discrimination against Israeli Arabs. It’s nothing like Nazi Germany though. It’s much more similar to minorities being discriminated and disadvantaged in the USA.

The situation for Palestinians with resident status in East Jerusalem is obviously different because they aren’t citizens. Palestinian residents of Jerusalem were able to apply for citizenship for decades. Many didn’t do it for various reasons. An important issue was not be seen as a traitor other Palestinians.

Similar issues exist with Arab Israelis. They don’t have to serve in the army, but can voluntarily. Not serving has disadvantages because they aren’t making social connections during their service. As your article also mentions, many of them don’t vote even though they have the right. That is changing though. Yoseph Haddad is a great example of an Arab Israeli who decided to serve in the army and became a successful journalist later on. He’s now working on integrating Israeli Arabs more into the political system.