Include cannot be used to “overrride” children properties. It doesn’t know which type of layout you will include, it will only inflate it and add it to the current layout.
To dynamically change the text, you need to do it in code.
final TextView textView1 = (TextView) findViewById(R.id.menuTextView);
textView1.setText(R.string.menu);
final TextView textView2 = (TextView) findViewById(R.id.settingsTextView);
textView2.setText(R.string.settings);